Dendrogram obtained from clustering of the pairwise mutual distances between extracted ICs from real data. The distances were estimated through a histogram-based technique after rank ordering (a) and KDE technique (b). The clustering operation was repeated for different IC model orders: (A) 5, (B) 10, (C) 15, and (D) 20. The interesting CTR components are described in Section 3.2.2
. See text for a discussion.